core4 gravel

August 14 - August 16, 2026 - Iowa City IA USA
 
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The greatest gravel event this side of the galaxy! That just happens to also include singletrack, pavement & b-roads.  25, 50, and 100 mile options. All the cats. All the peeps included. New this year: Official age cats!

Community. Opportunity. Recreation. Engagement. Because last year was insane. And 2023 is going to be even rowdier. To get all bodies on bikes thanks to our local bike advocacy partnerships: Iowa City Bike Library, Iowa Coalition of Off Road Riders, Neighborhood Centers of Johnson County, Corridor Devo Junior Cycling Team.

Start training NOW. And tell everyone you know why you are coming to Iowa City in August. Stay tuned for official training events next spring! Follow along at @core4.bike to get in on all the behind the scenes action. 

core4 gravel

 
Routes: 25, 50, 100 miles
Difficulty of Greatest Route: C - Moderate terrain with rolling short steep hills or moderate, sustained climbs
 
 
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